Qd Centrifugal High Pressure Multistage Pump Boiler Water Feed Pump

Model NO.: QD/QDG Max.Capacity: >400 L/min Impeller Number: Multistage Pump Influent Type of Impeller: Single Suction Pump Pump Casing Combined: Horizontal Split Pumps Impeller: Closed Brand: an Pump Pump Head: 15.78 - 684 M Frequency: 50Hz, 60Hz Application: Water, Hot Water, Sewage, Chemical Specification: CE/ISO/SGS HS Code: 8413709990 Max.Head: >150m Driving Type: Motor Working Pressure: High Pressure Pump Position of Pump Shaft: Horizontal Pump Mounting Height: Since Irrigation Centrifugal Pumps Usage: Pumps Pump Capacity: 3 - 684 M3/Hr Voltage: 220V, 380V, 400V, 415V, 440V, 460V Pump Material: Cast Iron, Cast Steel, Stainless Steel Trademark: An Pump Origin: Hebei, China QD Centrifugal high pressure multistage pump boiler water feed pump
General                                                                                                                                                                                                                                   
Model QD (G) pump is a horizontal multi-stage centrifugal pump and suitable for transporting pure water (with the contained foreign matters' content less than l % and graininess less than 0. 1mm) and other liquids of both physical and chemical natures similar to those of pure water.
QD model middle and low pressure boiler water supply pump is applicable to transport medium with temperature of not higher than 120ºC, and is also applicable for small boiler water supply or transporting medium similar to hotwater.
QDG model hypo-high-pressure boiler water supply pump is applicable to transport medium with temperature of not higher than 180ºC, and is also applicable for small boiler water supply or transporting medium similar to hot water.
    Performance range of mode QD (G) series
    Flow: 3-684m3/h       Corollary power: 4-3400kW
    Head: 15.78-684m      Inlet diameter: 25-450mm
 


Structure of QD boiler water feed multistage pump                                                                                             
 
For this series horizontal multistage centrifugal pump, both ends of it are supported, the casing portion is in a sectional form. it is connected to and actuated by a motor via a resilient clutch and the rotating direction of it. viewing from the actuating end. is clockwise. Refer to Fig. I for the structure of it.
 
Stator portion
Consists of suck-in section. middle-section, spitting section, guide vane, packing etc., which are linked together with a take-up bolt. with both suck-in and spitting mouths vertically upward.
 
Rotor portion
Consists of a shaft, impeller, balancing disk, muff etc. Parts.
 
Bearing portion
The whole rotor is supported by the roller bearings or sliding bearings on both ends of the shaft and the bearings are lubricated with grease or 20# engin oil.
 
Cooling and seal of pump
The joint-part between suction section, intermediate
section and discharge section with be coated with molybdenum disulfide lubricating grease as seal. Rotor and fixed parts will be sealed by seal ring, guide-vane jacket and packing. The packing tensile degree of shaft seal should be proper and seep should be feasible dip by dip Unload run should be forbid. The seal ring and guide vane jacket should be replaced if they are too worn to be used any more and even do harm to pump work. There is spare shaft sleeve near shaft seal to protect shaft of pump.
 
Performance data for QD multistage Boiler Feed Water Pump                                                                               
 
 

QD(G) Series multistage pump data
Pump Type	Flow	Head	Power
	(m3/h)	(m)	(KW)
QM(G) 6-25	3-7.5	73.5-306	4-11
QM(G) 12-25	7.5-15	69-338.4	5.5-22
QM(G) 12-50	7.5-15	139.5-648	18.5-75
QM(G) 25-30	15-30	82.5-340	15-45
QM(G) 25-50	15-30	15.78-618	22-110
QM(G) 46-30	30-55	81-340	22-75
QM(G) 46-50	30-55	138-666	37-132
QM(G) 85-45	55-100	78-459	37-160
QM(G) 85-67	55-100	183-666	90-250
QM(G) 155-67	100-185	177-684	132-400
QM(G) 280-43	185-335	114-423	160-450
QM(G)280-65	185-355	372-680	500-800
QM(G)450-60	335-684	171-650	360-3400

Application for QD boiler water feed multistage pump                                                                                
Long distance water transferring
Boiling water feeding and transferring
Fire fighting
Water system boosting
Mining industry
Power station and water plant
Offshore projects
All other application for high pressure liquid.
Sprinkler Irrigation Pump

If interested,please contact me.
Mandy
 

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